Netgear Router WGR614 User Manual

							Reference Manual for Cable/DSL Wireless Router WGR614 
Maintenance5-7
 
From the Main Menu of the browser interface, under the Maintenance heading, select the Settings 
Backup heading to bring up the menu shown below. 
Figure 5-6:  Settings Backup menu
Three options are available, and are described in the following sections.
Restoring and Backing Up the Configuration
The Restore and Backup options in the Settings Backup menu allow you to save and retrieve a file 
containing your router’s configuration settings.
To save your settings, select the Backup tab. Click the Backup button. Your browser will extract 
the configuration file from the router and will prompt you for a location on your PC to store the 
file. You can give the file a meaningful name at this time, such as pacbell.cfg.
To restore your settings from a saved configuration file, enter the full path to the file on your PC or 
click the Browse button to browse to the file. When you have located it, click the Restore button to 
send the file to the router. The router will then reboot automatically. 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
5-8Maintenance
 
Erasing the Configuration
It is sometimes desirable to restore the router to the factory default settings. This can be done by 
using the Erase function, which will restore all factory settings. After an erase, the routers 
password will be password, the LAN IP address will be 192.168.0.1, and the routers DHCP client 
will be enabled.
To erase the configuration, click the Erase button.
To restore the factory default configuration settings without knowing the login password or IP 
address, you must use the Default Reset button on the rear panel of the router. See 
“Restoring the 
Default Configuration and Password” on page 7-7.
Changing the Administrator Password
The default password for the router’s Web Configuration Manager is password. Netgear 
recommends that you change this password to a more secure password. 
From the Main Menu of the browser interface, under the Maintenance heading, select Set 
Password to bring up the menu shown below.
Figure 5-7:  Set Password menu
To change the password, first enter the old password, and then enter the new password twice. Click 
Apply. 
						

							Advanced Configuration 6-1
 
Chapter 6 
Advanced Configuration
This chapter describes how to configure the advanced features of your Model WGR614 Cable/
DSL Wireless Router. These features can be found under the Advanced heading in the Main Menu 
of the browser interface.
Configuring Port Forwarding to Local Servers
Although the router causes your entire local network to appear as a single machine to the Internet, 
you can make a local server (for example, a web server or game server) visible and available to the 
Internet. This is done using the Port Forwarding menu. From the Main Menu of the browser 
interface, under Advanced, click on Port Forwarding to view the port forwarding menu, shown 
below.
Figure 6-1:  Port Forwarding Menu
.
Note: If you are unfamiliar with networking and routing, refer to Appendix B, 
“Network, Routing, Firewall, and Basics,” to become more familiar with the terms and 
procedures used in this manual. 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
6-2 Advanced Configuration
 
Use the Port Forwarding menu to configure the router to forward incoming protocols to computers 
on your local network. In addition to servers for specific applications, you can also specify a 
Default DMZ Server to which all other incoming protocols are forwarded. The DMZ Server is 
configured in the Security Menu.
Before starting, youll need to determine which type of service, application or game youll provide 
and the IP address of the computer that will provide each service. Be sure the computer’s IP 
address never changes. To configure port forwarding to a local server:
1.From the Service Name box, select the service or game that you will host on your network. 
If the service does not appear in the list, refer to the following section, “Adding a Port 
Forwarding Custom Service”.
2.Enter the IP address of the local server in the corresponding Server IP Address box.
3.Click the Add button.
Adding a Port Forwarding Custom Service 
To define a service, game or application that does not appear in the Service Name list, you must 
determine what port numbers are used by the service. For this information, you may need to 
contact the manufacturer of the program that you wish to use. When you have the port number 
information, follow these steps:
1.Click the Add Custom Service button.
2.Enter the first port number in an unused Starting Port box.
3.To forward only one port, enter it again in the Ending Port box. To specify a range of ports, 
enter the last port to be forwarded in the End Port box.
4.Enter the IP address of the local server in the corresponding Server IP Address box.
5.Type a name for the service.
6.Click Apply at the bottom of the menu.
Editing or Deleting a Port Forwarding Entry
To edit or delete a Port Forwarding entry, follow these steps.
1.In the table, select the button next to the service name.
2.Click Edit or Delete. 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
Advanced Configuration 6-3
 
Local Web and FTP Server Example
If a local PC with a private IP address of 192.168.0.33 acts as a Web and FTP server, configure the 
Ports menu to forward HTTP (port 80) and FTP (port 21) to local address 192.168.0.33 
In order for a remote user to access this server from the Internet, the remote user must know the IP 
address that has been assigned by your ISP. If this address is 172.16.1.23, for example, an Internet 
user can access your Web server by directing the browser to http://172.16.1.23. The assigned IP 
address can be found in the Maintenance Status Menu, where it is shown as the WAN IP Address.
Some considerations for this application are:
• If your account’s IP address is assigned dynamically by your ISP, the IP address may change 
periodically as the DHCP lease expires.
• If the IP address of the local PC is assigned by DHCP, it may change when the PC is rebooted. 
To avoid this, you can manually configure the PC to use a fixed address.
• Local PCs must access the local server using the PCs’ local LAN address (192.168.0.33 in this 
example). Attempts by local PCs to access the server using the external IP address 
(172.16.1.23 in this example) will fail.
Multiple Computers for Half Life, KALI or Quake III Example
To set up an additional computer to play Half Life, KALI or Quake III: 
1.Click the button of an unused port in the table. 
2.Select the game again from the Service Name list. 
3.Change the beginning port number in the Start Port box.  
For these games, use the supplied number in the default listing and add +1 for each additional 
computer. For example, if youve already configured one computer to play Hexen II (using 
port 26900), the second computers port number would be 26901, and the third computer 
would be 26902. 
4.Type the same port number in the End Port box that you typed in the Start Port box. 
5.Type the IP address of the additional computer in the Server IP Address box. 
6.Click Apply.  
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
6-4 Advanced Configuration
 
Some online games and videoconferencing applications are incompatible with NAT. The WGR614 
router is programmed to recognize some of these applications and to work properly with them, but 
there are other applications that may not function well. In some cases, one local PC can run the 
application properly if that PC’s IP address is entered as the default in the PORTS Menu. If one 
local PC acts as a game or videoconferencing host, enter its IP address as the default.
Configuring WAN Setup Options
The WAN Setup options let you configure a DMZ server, change the MTU size and enable the 
router to respond to a Ping on the WAN port. These options are discussed below.
 
Figure 6-2:  WAN Setup menu.
• Connect Automatically, as Required
Normally, this option should be Enabled, so that an Internet connection will be made 
automatically, whenever Internet-bound traffic is detected. In locations where Internet access 
is billed by the minute, if this causes high connection costs, you can disable this setting. 
If disabled, you must connect manually, using the sub-screen accessed from the Router Status 
menu “Show WAN Status” screen.
• Disable SPI Firewall 
Normally, this option should be Enabled, so that your local network will be protected by the 
Stateful Packet Inspection (SPI) firewall included in the WGR614. However, certain 
communications functions like VPN may require turning off the SPI feature. 
• Setting Up a Default DMZ Server 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
Advanced Configuration 6-5
 
The default DMZ server feature is helpful when using some online games and 
videoconferencing applications that are incompatible with NAT. The router is programmed to 
recognize some of these applications and to work properly with them, but there are other 
applications that may not function well. In some cases, one local PC can run the application 
properly if that PC’s IP address is entered as the default DMZ server.
Incoming traffic from the Internet is normally discarded by the router unless the traffic is a 
response to one of your local computers or a service that you have configured in the Ports menu. 
Instead of discarding this traffic, you can have it forwarded to one computer on your network. This 
computer is called the Default DMZ Server.
The WAN Setup menu, shown below lets you configure a Default DMZ Server.
To assign a computer or server to be a Default DMZ server, follow these steps: 
1.Click WAN Setup link on the Advanced section of the main menu. 
2.Type the IP address for that server. To remove the default DMZ server, replace the IP address 
numbers with all zeros.
3.Click Apply.
• Respond to Ping on Internet WAN Port 
If you want the router to respond to a ping from the Internet, click the ‘Respond to Ping on 
Internet WAN Port’ check box. This should only be used as a diagnostic tool, since it allows 
your router to be discovered. Dont check this box unless you have a specific reason to do so.
• Setting the MTU Size
The default MTU size is usually fine. The normal MTU (Maximum Transmit Unit) value for 
most Ethernet networks is 1500 Bytes. For some ISPs, particularly some using PPPoE, you 
may need to reduce the MTU. This should not be done unless you are sure it is necessary for 
your ISP. 
Any packets sent through the router that are larger than the configured MTU size will be 
repackaged into smaller packets to meet the MTU requirement. To change the MTU size:
Under MTU Size, enter a new size between 64 and 1500. Then, click Apply to save the new 
configuration.
Note: DMZ servers pose a security risk. A computer designated as the default DMZ 
server loses much of the protection of the firewall, and is exposed to exploits from the 
Internet. If compromised, the DMZ server can be used to attack your network. 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
6-6 Advanced Configuration
 
Using a Dynamic DNS Service
If your network has a permanently assigned IP address, you can register a domain name and have 
that name linked with your IP address by public Domain Name Servers (DNS). However, if your 
Internet account uses a dynamically assigned IP address, you will not know in advance what your 
IP address will be, and the address can change frequently. In this case, you can use a commercial 
dynamic DNS service which will allow you to register your domain to their IP address, and will 
forward traffic directed at your domain to whatever your current IP address happens to be.
The router contains a client that can connect to many popular dynamic DNS services. You can 
select one of these services and obtain an account with them. Then, whenever your ISP-assigned 
IP address changes, your router will automatically contact your dynamic DNS service provider, 
log in to your account, and register your new IP address.
From the Main Menu of the browser interface, under Advanced, click on Dynamic DNS. To 
configure Dynamic DNS:
1.Register for an account with one of the dynamic DNS service providers whose names appear 
in the ‘Select Service Provider’ box. For example, for dyndns.org, go to www.dyndns.org.
2.Select the Use a Dynamic DNS service check box. 
3.Select the name of your dynamic DNS Service Provider. 
4.Type the Host Name (or domain name) that your dynamic DNS service provider gave you.
5.Type the User Name for your dynamic DNS account. 
6.Type the Password (or key) for your dynamic DNS account. 
7.If your dynamic DNS provider allows the use of wildcards in resolving your URL, you may 
select the Use wildcards check box to activate this feature. 
 
For example, the wildcard feature will cause *.yourhost.dyndns.org to be aliased to the same 
IP address as yourhost.dyndns.org
8.Click Apply to save your configuration.
Note: If your ISP assigns a private WAN IP address (such as 192.168.x.x or 10.x.x.x), 
the dynamic DNS service will not work because private addresses will not be routed on 
the Internet. 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
Advanced Configuration 6-7
 
Using LAN IP Setup Options
The LAN IP Setup feature is under the Advanced heading of the main menu. This feature allows 
configuration of LAN IP services such as DHCP and RIP. From the Main Menu of the browser 
interface, under Advanced, click on LAN IP Setup to view the LAN IP Setup menu, shown below.
Figure 6-3:  LAN IP Setup Menu
The router is shipped preconfigured to use private IP addresses on the LAN side, and to act as a 
DHCP server. The router’s default LAN IP configuration is:
• LAN IP addresses—192.168.0.1
• Subnet mask—255.255.255.0
These addresses are part of the IETF-designated private address range for use in private networks, 
and should be suitable in most applications. If your network has a requirement to use a different IP 
addressing scheme, you can make those changes in this menu.
The LAN IP parameters are: 
						

							Reference Manual for Cable/DSL Wireless Router WGR614 
6-8 Advanced Configuration
 
• IP Address 
This is the LAN IP address of the router.
• IP Subnet Mask 
This is the LAN Subnet Mask of the router. Combined with the IP address, the IP Subnet Mask 
allows a device to know which other addresses are local to it, and which must be reached 
through a gateway or router.
• RIP Direction 
RIP (Router Information Protocol) allows a router to exchange routing information with other 
routers. The RIP Direction selection controls how the router sends and receives RIP packets. 
Both is the default. 
— When set to Both or Out Only, the router will broadcast its routing table periodically. 
— When set to Both or In Only, it will incorporate the RIP information that it receives. 
— When set to None, it will not send any RIP packets and will ignore any RIP packets 
received. 
• RIP Version 
This controls the format and the broadcasting method of the RIP packets that the router sends. 
(It recognizes both formats when receiving.) By default, this is set for RIP-1. 
— RIP-1 is universally supported. RIP-1 is probably adequate for most networks, unless you 
have an unusual network setup. 
— RIP-2 carries more information. RIP-2B uses subnet broadcasting.
Using the Router as a DHCP server
By default, the router will function as a DHCP (Dynamic Host Configuration Protocol) server, 
allowing it to assign IP, DNS server, and default gateway addresses to all computers connected to 
the routers LAN. The assigned default gateway address is the LAN address of the router. IP 
addresses will be assigned to the attached PCs from a pool of addresses specified in this menu. 
Each pool address is tested before it is assigned to avoid duplicate addresses on the LAN.
Note: If you change the LAN IP address of the router while connected through the 
browser, you will be disconnected. You may need to restart your computer for the new IP 
address setting to take effect.